1. His black nose kept moving to both sides, sniffing the dangerous smell over and over.

2. They quickly raised their heads and saw a pointed, long, black and furry face emerging from a small hole at the top of the tunnel.

3. Mr. Fox crawled along the dark tunnel to the entrance of the cave. He stretched his long, handsome face outside and sniffed the night air.

4. In order to escape, Mr. Fox dug up with his front paws, and the dug soil flew behind him. Mrs. Fox ran forward to help, and the four children also came to help.

5. Mr. Fox began to pace quietly back and forth in the warehouse, looking at these gorgeous displays with an expert's eyes. A long thread of saliva flowed out from the side of his chin, hung in the air, and then fell to the ground.

6. However, if Mr. Fox knew where the three farm owners were waiting for him at this moment, he would not be so overly conceited.

7. When he was about to run towards the woods ahead, he suddenly heard, or felt, a sound. It was a slight rustling sound, as if someone moved their feet gently among a pile of dry leaves.

8. He quickly turned his head and listened. The sound he heard now was the most terrifying sound a fox could hear - the crunch of a shovel digging into the earth.

9. The shovel kept digging on their heads, making a creaking, creaking, creaking sound. Small rocks and particles of soil began to fall from the top of the tunnel.

10. The tunnel is getting longer and longer. It extends downwards at a steep slope, getting farther and farther from the ground as the depth increases.